#demo li:hover {
    background: #99ccff;
}
.articleMsg{
  color: gray;
  text-decoration: none;
}
a.articleMsg:hover{
    color: orangered;
}
a.article:link{
  text-decoration: none;
}
a.article:hover{
  text-decoration: underline;
  background-color: gray;
}
div.delBtn{
  float: right;
  width: 50px;
  font-size: 20px;
}
div.delBtn:hover{
  color: grey;
  cursor: pointer;
}